Since you’re here...

... we have a small favour to ask. More people, like you, are reading and supporting our blog: "Chess Engines Diary". And unlike many other sites and blogs, we made the choice to keep our articles open for all, regardless of where they live or what they can afford to pay.

We hope you will consider supporting us today. We need your support to continue to exist, because good entries are more and more work time. Every reader contribution, however big or small, is so valuable. Support "Chess Engines Diary" even a small amount– and it only takes a minute. Thank you.

============================== My email: jotes@go2.pl



Chess engine: Stockfish 21021123


Stockfish - UCI chess engine, compiled by Vizvezdenec
Rating JCER=3151

Timestamp: 1613083146
PV-Nodes likely to fail low
Do not decrease reduction at pv-nodes which are likely to fail low.

The idea of this patch can be described as following: during the search, if a node on the principal variation was re-searched in non-pv search and this re-search got a value which was much lower than alpha, then we can assume that this pv-node is
likely to fail low again, and we can reduce more aggressively at this node.

Passed STC
https://tests.stockfishchess.org/tests/view/6023a5fa7f517a561bc49638
LLR: 2.95 (-2.94,2.94) {-0.25,1.25}
Total: 70288 W: 6443 L: 6223 D: 57622 Elo +1.09
Ptnml(0-2): 239, 5022, 24436, 5174, 273

Passed LTC
https://tests.stockfishchess.org/tests/view/6023f2617f517a561bc49661
LLR: 2.94 (-2.94,2.94) {0.25,1.25}
Total: 105656 W: 4048 L: 3748 D: 97860 Elo +0.99
Ptnml(0-2): 67, 3312, 45761, 3630, 58
Bench: 3766422

Stockfish 21021123 and NNUE download

 

Comments

Popular posts from this blog

New chess engine: HypnoS 190324 (derived from Stockfish)

New version chess engine: Lc0 BT4

SF-PRO 23.02.2024 wins Strong Engines Tournament (Tests by Jörn Gronemann, Heide, 2024.03.01)

INCOGNITO 7 and Killfish 130324 wins Strong Engines Tournament (Tests by Jörn Gronemann, Heide, 2024.03.15)

SF-PRO 08.03.2024 wins New Engines Test, 09-10.03.2024

Chess engine: SF 16.1 MPV

Chess Engines Diary Rating (Stockfish and clones) - 03.03.2024